After jumping through many hoops and rolling several failed Bureaucracy checks, One Page Solo Engine is finally available on mobile! Both the rules and the interactive app are completely free to use. No ads, no PWYW, just free. Please check it out at the links below. I hope it will help you create many amazing adventures in your solo and GM-less games. Tag me in your post if you end up using it for your games; I’d love to see how it goes!
One Page Solo Engine is a minimal, all-in-one toolkit to play your favorite tabletop RPGs without a GM. It is designed to provide every tool needed to run a solo game using any game system while using as few words as humanly possible. The interactive app features all the same tables from One Page Solo Engine plus Story Mode, which lets you type your character actions directly into the app and record the adventure as you play. You can export your session log as plain text or lightly formatted HTML that you can copy to your blog or share with others online.